ʻO nā refractories insulation thermal e pili ana i nā refractories me ka porosity kiʻekiʻe, ka haʻahaʻa o ka bulk density, a me ka haʻahaʻa o ka conductivity thermal, i ʻike ʻia hoʻi he mau refractories māmā. Me nā huahana refractory insulating wela, nā fibers refractory, a me nā huahana fiber refractory. Wahi a ka mahana hoʻohana: nā mea refractory insulation haʻahaʻa wela, ʻoi aku ka haʻahaʻa o ka mahana hoʻohana ma mua o 900 ℃, e like me nā brick insulation diatomite, nā huahana silica i hoʻonui ʻia, nā papa calcium silica, nā huahana perlite i hoʻonui ʻia, a pēlā aku; nā refractories insulation mahana waena, hoʻohana i ka mahana 900 ~ 1200 ℃, e like me nā brick refractory insulation thermal clay, alumini silicate refractory fiber, a pēlā aku.; ʻOi aku ka mahana o ka hoʻohana ʻana ma mua o 1200 ℃, e like me nā brick refractory insulation thermal alumini kiʻekiʻe, nā brick refractory insulation thermal alumina, nā brick refractory insulation siliceous, nā brick ball hollow alumina, nā brick ball hollow zirconia, nā fiber refractory alumina kiʻekiʻe, nā fiber refractory polycrystalline (polycrystalline alumina fiber, polycrystalline zirconia fiber, polycrystalline mullite fiber), etc.
ʻO ka hana ʻana o nā huahana refractory hoʻomehana wela e hoʻohana nui i nā ʻano hana e hiki ai ke hana i kahi ʻano porous, e like me ke ʻano mea maka māmā, ke ʻano puhi ʻana, ke ʻano huʻa, a me ke ʻano kemika. ʻO nā olonā refractory amorphous, e like me nā olonā refractory alumini silicate, nā olonā refractory alumina kiʻekiʻe, a me nā mea ʻē aʻe, i hana pinepine ʻia ma ka hoʻoheheʻe ʻana. ʻO nā olonā refractory polycrystalline, e like me nā olonā mullite, nā olonā alumina, a me nā mea ʻē aʻe, i hana ʻia e ke ʻano colloid.
ʻO nā ʻano nui o nā refractories insulating he porosity kiʻekiʻe, ma ke ʻano maʻamau ma luna o 45%; haʻahaʻa ka nui o ka nui, ʻaʻole maʻamau i ʻoi aku ma mua o 1.5g/cm3; haʻahaʻa ka conductivity thermal, ʻoi aku ka liʻiliʻi ma mua o 1.0W/(m·K). Hoʻohana nui ʻia e like me ka insulation thermal o nā umu ʻoihana, ʻaʻole hiki ke hōʻemi wale i ka nalowale wela o ka umu, akā hōʻemi pū i ka mālama wela o ka umu, loaʻa ka hopena mālama ikehu maikaʻi loa, a hōʻemi i ke kaumaha o nā lako thermal. Ke hoʻohālikelike ʻia me nā piliki refractory maʻamau, ʻaʻole maikaʻi ka pale ʻana o nā refractories i ka slag corrosion, ka ikaika mechanical, a me ke kūpaʻa ʻana i ka ʻaʻahu. No laila, ʻaʻole kūpono ia no ka ʻano halihali o ka umu a me nā ʻāpana e pili pono ana me ka slag, ka uku, ka metala hoʻoheheʻe ʻia, a pēlā aku.
Ke ʻano hoʻokaʻawale ʻana o nā huahana refractory insulation
ʻO nā huahana refractory insulation thermal e pili ana i nā huahana refractory me ka porosity ʻaʻole i emi iho ma mua o 45%. ʻO nā ʻano nui o nā huahana refractory insulating wela he porosity kiʻekiʻe a me ka haʻahaʻa o ka nui. He haʻahaʻa ka conductivity thermal, he liʻiliʻi ka mana wela, a maikaʻi ka hana insulation wela. He mālama wela a kūpaʻa i ka wela. Hiki ke hoʻohana ʻia ma ke ʻano he papa insulation thermal no nā lako thermal like ʻole, a hiki ke hoʻohana ʻia kekahi ma ke ʻano he papa hana. He mea mālama ikehu ia no ke kūkulu ʻana i nā umu like ʻole. ʻO ka hoʻololi ʻana i nā huahana refractory insulating wela no nā huahana refractory paʻa maʻamau e like me nā mea kūkulu umu hiki ke hōʻemi i ka mālama wela a me ka pohō hoʻolaha wela ma 40% a 50%, ʻoi aku hoʻi no nā lako thermal discontinuous.
Nui nā ʻano o nā huahana insulation a me nā huahana refractory, i hoʻokaʻawale ʻia i ʻekolu mau māhele e like me ka mahana hoʻohana, ka nui o ka nui, a me ke ʻano o ka huahana.
(1) Hoʻokaʻawale ʻia e ka nui o ke kino. ʻO nā mea me ka nui o ka nui o 0.4 ~ 1.3g / cm3 he mau piliki māmā; ʻo nā mea me ka nui o ka nui ma lalo o 0.4g / cm3 he mau piliki māmā loa.
(2) Hoʻokaʻawale ʻia e ka mahana hana. E hoʻohana i ka mahana 600 ~ 900 ℃ no ka mea hoʻomehana wela haʻahaʻa; 900 ~ 120 ℃ no ka mea hoʻomehana wela waena; ma luna o 1200 ℃ no ka mea hoʻomehana wela kiʻekiʻe.
(3) Hoʻokaʻawale ʻia e ke ʻano o ka huahana: ʻo kekahi he mau piliki māmā i hoʻohālikelike ʻia me ka lepo, ka alumina kiʻekiʻe, ka silicon, a me kekahi mau piliki māmā oxide maʻemaʻe; ʻo kekahi he mau piliki māmā i hoʻohālikelike ʻole ʻia, e like me ka sima māmā i hoʻohālikelike ʻia me ka sima.
ʻOkoʻa ke ʻano hana o nā huahana refractory hoʻopaʻa wela mai nā mea paʻa maʻamau. Nui nā ʻano hana, ʻo ia hoʻi ke ʻano puhi ahi, ke ʻano huʻa, ke ʻano kemika, a me ke ʻano mea porous.
1) Ke ʻano puhi a hoʻohui i nā mea. Ua kapa ʻia hoʻi ke ʻano o ka hoʻohui ʻana i nā mea hiki ke puhi. E hoʻohui i nā mea hiki ke puhi maʻalahi, e like me ke kalapona, ka lāʻau lepo, a pēlā aku, i loko o ka lepo hana piliki e loaʻa ai i ka huahana kekahi mau pores ma hope o ke ahi ʻana.
2) Ke ʻano hoʻomoʻa. E hoʻohui i nā mea hoʻohua, e like me ke kopa rosin, a pēlā aku i ka lepo no ka hana ʻana i nā piliki, a e hoʻohua iā ia ma ke ʻano mechanical. Ma hope o ke ahi ʻana, loaʻa kahi huahana porous.
3) Ke ʻano hana kemika. Ma ka hoʻohana ʻana i kahi hopena kemika e hiki ke hoʻopuka pono i ke kinoea, loaʻa kahi huahana porous i ke kaʻina hana o ka hana ʻana i nā piliki, ʻo ka dolomite a i ʻole periclase me ka gypsum, a me ka waikawa sulfuric ma ke ʻano he mea hoʻohua.
4) Ke ʻano hana mea porous. E hoʻohana i ka lepo diatomaceous maoli a i ʻole ka clinker foam clay artificial, alumina a i ʻole zirconia hollow spheres, a me nā mea maka porous ʻē aʻe e hana i nā piliki refractory māmā.
ʻO ka hoʻohana ʻana i nā huahana refractory insulation me ka conductivity thermal haʻahaʻa a me ka mana wela liʻiliʻi e like me nā mea hana kino umu e hiki ke mālama i ka hoʻohana ʻana i ka wahie; hoʻomaikaʻi i ka pono hana hana; hiki iā ia ke hoʻemi i ke kaumaha o ke kino umu, hoʻomaʻalahi i ke ʻano o ka umu, hoʻomaikaʻi i ka maikaʻi o ka huahana, a hoʻemi i ka mahana ambient. Hoʻomaikaʻi i nā kūlana hana. Hoʻohana nui ʻia nā huahana refractory insulation ma ke ʻano he papa insulation wela, lining a i ʻole ka papa insulation o ka kiln.
1. Nā pōhaku lepo paʻa ʻole no ka hoʻopili ʻana o ka alumina
Hoʻohana nā piliki paʻa pale wela alumina i ka corundum i hoʻopili ʻia, ka alumina sintered, a me ka alumina ʻoihana ma ke ʻano he mau mea maka nui e hana i nā huahana paʻa pale wela me ke kūpaʻa ikaika o ka lewa waikawa a me ka alkali a me ke kūpaʻa hōʻemi, a me ke kūpaʻa haʻalulu wela maikaʻi. Hiki ke hoʻohana ʻia no ka manawa lōʻihi ma lalo o 1700 ℃. Hoʻohana kāna hana hana i ʻelua ʻano o ke ʻano huʻa a me ke ʻano hoʻohui puhi. Loaʻa i nā huahana i hana ʻia e ke ʻano huʻa nā ʻano o ke ʻano like, ka conductivity wela haʻahaʻa, a me ka hana insulation wela maikaʻi.
He māmā nā piliki pale wela o ka alumina, me ka ikaika compressive kiʻekiʻe, ka conductivity thermal haʻahaʻa, ka emi ʻana o ka nui ma hope o ke puhi hou ʻana, a me ke kūpaʻa haʻalulu thermal maikaʻi. Hiki ke hoʻohana ʻia no nā papa insulation wela o nā lako wela wela kiʻekiʻe a i ʻole nā umahu e launa pololei me nā lapalapa. A me ka uhi hana o nā lako wela kikoʻī, akā ʻaʻole kūpono no kahi corrosion e pili pono ana i ka wai umu a me ka slag heheʻe. Loaʻa iā ia ke kūpaʻa kiʻekiʻe ke hoʻohana ʻia i ka lewa hoʻemi. Aia ka mahana hoʻohana i ka maʻemaʻe o ka huahana, ma ke ʻano maʻamau a hiki i 1650 ~ 1800 ° C. E ʻike i ka Papa 3-105 no nā ʻōkuhi kino a me nā kemika maʻamau o ia mau huahana.
2. Nā pōhaku paʻakikī hoʻomehana alumini kiʻekiʻe
ʻO nā piliki paʻa wela alumini kiʻekiʻe he mau huahana paʻa wela me ka nui o ka ʻole o 48% i hana ʻia mai ka mea maka nui. ʻO nā piliki paʻa wela alumini kiʻekiʻe ka mea i hana nui ʻia me ka bauxite ma ke ʻano he mea maka, i hui pū ʻia me ka lepo ma ke ʻano he mea maka, i kāwili ʻia me nā mea hoʻopaʻa a me ka sawdust. No ka hoʻomaikaʻi ʻana i ka hana huahana, hoʻohui ʻia ka alumina ʻoihana, corundum, sillimanite, kyanite, a me silica. Hiki ke hana ʻia ka pauka maikaʻi i nā huahana me nā ʻano nui like ʻole a me nā mahana hoʻohana kiʻekiʻe like ʻole. ʻO ka maʻamau, ʻo ka mahana hoʻohana he 1250 ~ 1350 ℃, a hiki i kekahi ke hiki i 1550 ℃.
ʻO ka hapa nui o nā piliki hoʻomehana alumini kiʻekiʻe e hana ʻia e ke ʻano huʻa, a ʻo ka nui o ka nui o ka huahana ma waena o 0.4 ~ 1.0g / cm3, a hiki ke hana ʻia ma ke ʻano o nā mea hoʻohui puhi. Ua hōʻike ʻia nā ʻōkuhi kino a me nā kemika o nā piliki pale wela alumini kiʻekiʻe ma ka Papa 3-106.
Hiki ke hoʻohana ʻia nā piliki pale wela alumini kiʻekiʻe e kūkulu i nā papa pale wela a me nā ʻāpana i ʻole i pala a holoi ʻia e nā mea hoʻoheheʻe wela kiʻekiʻe. Ke pili pololei me ka lapalapa, ʻaʻole e ʻoi aku ka mahana o ka pilina o ka ʻili o nā piliki pale wela alumini kiʻekiʻe ma mua o 1350 ℃. Hiki i nā piliki pale wela Mullite ke hoʻopili pololei i ka lapalapa, a he mau ʻano o ke kūpaʻa wela kiʻekiʻe, ka ikaika kiʻekiʻe, a me ka hopena mālama ikehu koʻikoʻi. He kūpono ia no ka uhi ʻana o nā umu pyrolysis, nā umu ea wela, nā umu wili keramika, nā umu huki porcelain uila, a me nā umu kūpaʻa like ʻole. Hiki ke hoʻohana ʻia ka piliki pale wela corundum-mullite me ka nui o Al2O3 o 82.4% ma ke ʻano he uhi umu ma 1550°C.
3. Nā pōhaku lepo paʻa pale ʻole
ʻO nā piliki paʻa wela i hana ʻia me ka pālolo he mau huahana paʻa wela me ka 30%-48% Al2O3 i hana ʻia me ka pālolo paʻa ma ke ʻano he mea maka nui, me ka hoʻohana ʻana i ka pālolo paʻa, nā momi lana, a me ka clinker pālolo paʻa ma ke ʻano he mea maka, me ka hoʻohui ʻana i nā mea hoʻopaʻa a me ka sawdust. Me ka hui ʻana, ka hui ʻana, ke kūkulu ʻana, ka maloʻo ʻana, a me ke ahi ʻana, hiki ke loaʻa nā huahana me ka nui o 0.3 ~ 1.5g / cm3, a ʻoi aku ka nui o ka hana ma mua o ka hapalua o nā piliki paʻa wela.
ʻO ke kaʻina hana hana maʻamau i hoʻohana ʻia no nā piliki paʻa wela o ka pālolo, ʻo ia ke ʻano hoʻohui puhi me nā momi lana, a hiki ke hoʻohana ʻia ke ʻano huʻa. E nānā i ka Papa 3-107 no nā ʻōkuhi kino o nā piliki paʻa wela o ka pālolo.
He nui nā ʻano hana o nā piliki pale wela i hoʻokumu ʻia i ka pālolo. Hoʻohana nui ʻia lākou i nā lako hana wela a me nā umu ʻoihana. Hiki ke hoʻohana ʻia no nā ʻāpana i ʻole i pala a holoi ʻia e nā mea hoʻoheheʻe wela kiʻekiʻe. ʻO kekahi mau ʻili e pili pono ana i ka lapalapa ua uhi ʻia me kahi papa. Hiki i ka uhi pale ke hōʻemi i ka ʻino ʻia e ka slag a me ka lepo kinoea umu a hōʻemi i ka pōʻino. ʻAʻole ʻoi aku ka mahana hana o ka huahana ma mua o ka mahana hoʻāʻo o ka laina hoʻihoʻi. No ka piliki pale pālolo kahi ʻano mea pale māmā me nā pores he nui. He 30% a 50% ka porosity o kēia mea, a he maikaʻi ʻole kona pale wela, akā maikaʻi kona ikaika mechanical a me ke kūpaʻa i ka pala.
4. Nā pōhaku pale ʻūlū silicone
Hana ʻia ka piliki pale wela siliceous me ka silica ma ke ʻano he mea maka nui, a ʻo ka huahana pale wela me ka ʻike SiO2 ma lalo o 91%. Ma waho aʻe o nā waiwai pale wela, mālama nui nā piliki pale silicon i nā ʻano o nā piliki silicon. Kiʻekiʻe ka mahana hoʻomaka o ka palupalu ʻana o ka ukana, a hoʻonui iki ka nui i ka wā o ke kaʻina hana hoʻomehana, kahi e hoʻonui ai i ka pono o ka umu.
ʻO ka hana o ka papa GGR-1.20 o nā piliki refractory siliceous heat-insulating no nā umu ʻoihana i kuhikuhi ʻia ma ka China Metallurgical Industry Standard YB386-1994, ʻaʻole ʻoi aku ka nui o ka nui ma mua o 1.2g/cm3, ʻaʻole emi ka ikaika compressive ma ka mahana o ka lumi ma mua o 5MPa, a ʻo ka mahana hoʻomaka o ka palupalu ma lalo o ke kaumaha ma lalo o 0.1MPa ʻaʻole emi ma mua o 1520 ℃, ʻaʻole emi ka ʻike SiO2 ma mua o 91%.
He kūpono kēia huahana no ka uhi ʻana o nā umu ʻoihana a i ʻole nā papa hoʻomehana wela i pili pono ʻole me nā mea hoʻoheheʻe wela kiʻekiʻe a ʻaʻole i pili pono i nā kinoea ʻino. ʻAʻole ʻoi aku ka mahana hana o ka pōhaku ma mua o 1550°C.
ʻOi aku ka ʻino o nā piliki pale wela i hana ʻia me ka silica i ke kino o ke kanaka ma muli o ka lepo silica, a ʻoi aku ka paʻakikī o ke kaʻina hana ma mua o ka pālolo a me nā piliki pale wela alumini kiʻekiʻe, a he hapa liʻiliʻi ia o ka huina o nā mea pale wela.
5. Nā pōhaku pale ʻaʻa Diatomite
ʻO ka piliki hoʻomehana wela Diatomite kahi huahana pale wela i hana ʻia me ka diatomite ma ke ʻano he mea maka nui. He mau pores paʻa maikaʻi nā piliki hoʻomehana wela Diatomite, porosity kiʻekiʻe, hana hoʻomehana wela maikaʻi, akā haʻahaʻa ka ikaika mechanical, ʻoi aku hoʻi ma hope o ka pulu ʻana, emi nui ka ikaika. ʻO kona ʻano kemika nui ʻo SiO2, ukali ʻia e Al2O3, a me ka hao a me ka potassium. , Sodium, calcium, magnesium oxides a me nā mea haumia ʻē aʻe.
Ua hōʻike ʻia nā ʻōkuhi kino o nā piliki insulation diatomite ma ka Papa 3-108. ʻOi aku ka maikaʻi ʻole o ke kūpaʻa wela o nā huahana piliki insulation diatomite, a ʻo ka refractoriness ma kahi o 1280 ℃ wale nō, no laila ʻaʻole kiʻekiʻe ka mahana hoʻohana. Hiki ke hoʻohana wale ʻia i loko o ka papa insulation ma lalo o 900°C.
6. Nā huahana perlite i hoʻonui ʻia
ʻO nā huahana perlite i hoʻonui ʻia he mau huahana refractory hoʻopaʻa wela i hana ʻia me ka perlite ma ke ʻano he ʻāpana nui. ʻO nā huahana insulation i hana ʻia me ka perlite i hoʻonui ʻia e like me ka aggregate a me ka sima kūpono, ke aniani wai, ka phosphate, a me nā mea ʻē aʻe, ma hope o ka hoʻoulu ʻana, ka hui ʻana, ka hoʻokumu ʻana, ka maloʻo ʻana, ka hoʻomoʻa ʻana a i ʻole ka hoʻōla ʻana. He liʻiliʻi ka nui o ka perlite i hoʻonui ʻia, maʻamau he 40 ~ 120g / cm3 wale nō; ʻaʻole kiʻekiʻe ka refractoriness, maʻamau he 1280 ~ 1360 ° C. ʻOkoʻa ka mahana hoʻohana kiʻekiʻe loa o nā huahana me nā mea hoʻopaʻa like ʻole, maʻamau ma lalo o 1000 ° C.
Ua hoʻokaʻawale ʻia nā huahana perlite i hoʻonui ʻia i loko o 200, 250, 300 a me 350kg/m34 mau ʻāpana e like me ka nui o ka nui o nā huahana ma ke kūlana aupuni. Wahi a ke ʻano o ka sima i hoʻohana ʻia, ua māhele ʻia i loko o nā huahana perlite i hoʻonui ʻia me ka sima, nā huahana perlite i hoʻonui ʻia me ke aniani wai, nā huahana perlite i hoʻonui ʻia me ka phosphate, a me nā huahana perlite i hoʻonui ʻia me ka asphalt.
7. Nā huahana vermiculite i hoʻonui ʻia
ʻO nā huahana vermiculite i hoʻonui ʻia he mau huahana pale wela me ka vermiculite i hoʻonui ʻia ma ke ʻano he mea maka nui. Hoʻokumu ʻia ka hana ʻana o nā huahana vermiculite i hoʻonui ʻia ma kahi nui o ka vermiculite i hoʻonui ʻia e like me ka hui ʻana, e hoʻohui ana i nā mea hoʻohui a me nā mea hoʻopaʻa, e hui pū me ka wai ma kahi ʻāpana, a hana, hoʻomaloʻo, kālua a hoʻōla paha e hana i nā huahana insulation thermal. Loaʻa i nā huahana me nā densities bulk like ʻole, nā mea hoʻohui, a me nā mea hoʻopaʻa nā mahana hoʻohana kiʻekiʻe loa, a hoʻohana pinepine ʻia nā papa insulation wela ma lalo o 1000°C. Nui nā ʻano huahana vermiculite i hoʻonui ʻia, i hoʻokaʻawale pinepine ʻia e like me ke ʻano o ka mea hoʻopaʻa i hoʻohana ʻia a me ke ʻano o ka hui i hoʻohana ʻia. Wahi a ka mea hoʻopaʻa, hiki ke hoʻokaʻawale ʻia i nā huahana mea hoʻopaʻa organik, nā huahana mea hoʻopaʻa inorganic a me nā huahana mea hoʻopaʻa hui organik a me inorganic. Wahi a ke ʻano o ka hui i hoʻohana ʻia, hiki ke hoʻokaʻawale ʻia i nā huahana hui hoʻokahi, nā hui he nui a me nā huahana hoʻohui.
ʻO ka vermiculite i hoʻonui ʻia he haʻahaʻa ka hoʻokele wela, haʻahaʻa ka ikaika, a ʻaʻole hiki ke pale wai, no laila ua kaupalena nui ʻia kāna noi. Ke hoʻohana ʻia ka mea sima ikaika kiʻekiʻe e hoʻopaʻa i ka vermiculite i hoʻonui ʻia i loko o kahi huahana i hoʻopau ʻia, e ʻoi aku ka ikaika ma mua o ka vermiculite i hoʻonui ʻia a hiki ke kū i ka ukana nui; i ka wā e hoʻohana ai i ka mea sima wai ʻole e hoʻopaʻa pū i ka vermiculite i hoʻonui ʻia, ʻo ka huahana hopena he hana pale wai a hiki ke hoʻohana ʻia ma kahi o ka wai. ʻOi aku ka kiʻekiʻe o ka hoʻokele wela o ka mea hoʻopaʻa ma mua o ka vermiculite i hoʻonui ʻia, no laila ʻo ka hoʻohui ʻana o ka mea hoʻopaʻa e hoʻolilo i ka pōhaku oyster i hoʻonui ʻia i nā hoʻohana hou, akā hoʻemi pū ia i ka hopena insulation thermal o ka vermiculite i hoʻonui ʻia.
8. Papa silika kalipuna
Hana ʻia ka papa silicate calcium me ka lepo diatomaceous a me ka lime ma ke ʻano he mau mea maka nui, a ʻo nā huahana refractory hoʻomehana i hana ʻia ma ka hoʻohui ʻana i ka fiber hoʻoikaika ua kapa ʻia hoʻi he papa silicate calcium a me ka papa silicate calcium microporous. Ua māhele ʻia ka papa silicate calcium i ʻelua mau ʻāpana e like me kona ʻano: ʻo kekahi he papa silicate calcium maʻamau, ʻo ke ʻano kemika o CaO/SiO2 ma kahi o 0.8, ʻo ke ʻano mineral he tobermorite (tobermorite, 5CaO·6SiO2·5H2O); ʻo kekahi he silicate paʻakikī Calcium, ʻo ke ʻano kemika o CaO/SiO2 ma kahi o 1.0, a ʻo ke ʻano mineral he silicate paʻakikī calcium.
He mau waiwai maikaʻi loa ko ka silicate calcium e like me ka liʻiliʻi o ka mana, ka hoʻokaʻawale ikaika, ka conductivity thermal haʻahaʻa, ke kūkulu kūpono, a me ka haʻahaʻa o ka pohō. ʻO ka nui o ka papa calcium silicate i kuhikuhi ʻia ma ka honua ʻaʻole i ʻoi aku ma mua o 220kg/m3, a ua māhele ʻia kekahi i 33 mau ʻano ʻaʻole i ʻoi aku ma mua o 220kg/m3, ʻaʻole i ʻoi aku ma mua o 170kg/m3, a ʻaʻole i ʻoi aku ma mua o 130kg/m; Ua hoʻokaʻawale ʻia ʻo Kina ʻaʻole i ʻoi aku ma mua o 240kg/cm3, ʻaʻole i ʻoi aku ma mua o 220kg/cm3, ʻaʻole i ʻoi aku ma mua o 170kg/cm 33 mau ʻano. ʻOi aku ka ikaika compressive ma mua o 0.4MPa, ʻoi aku ka ikaika flexural ma mua o 0.2MPa; ʻo ka conductivity thermal (70℃±5℃) he 0.049～0.064W/(m·K) ka mahana hana kiʻekiʻe loa, a ʻo ka torbe mullite he 650℃, ʻo ke ʻano calcium silicate he 1000℃.
Hiki ke ʻoki ʻia a kui ʻia paha ka papa calcium silicate, a hiki ke hana ʻia i mau papa, poloka a i ʻole nā pahu. Hiki ke hoʻohana ʻia ma ke ʻano he mau mea hoʻomehana wela no nā pipeline wela a me nā umu ʻoihana i ka mana uila, ka ʻoihana kemika, metallurgy, nā moku, a pēlā aku; ka pale ahi a me ka wela o nā hale, nā mea hana a me nā lako, Hiki ke hoʻohana ʻia no ka papa hoʻomehana wela o ka umu hoʻomaloʻo wela kiʻekiʻe a me ke kahua kaʻa umu tunnel; hiki ke hoʻopili ʻia nā ʻaoʻao ʻelua o ka papa calcium silicate me ka veneer plastic, plywood, papa sima asbestos, a pēlā aku. Hiki ke hoʻohana ʻia ma ke ʻano he mea hoʻomehana wela. ʻO ka hapa nui o nā mea ʻenekinia hoʻomehana wela ma ka honua e hoʻohana i ka papa calcium silicate, a ʻo kekahi mau ʻāina e hoʻohana ana i ka papa calcium silicate no ka hoʻomehana wela ma ka ʻoihana he 70% a 80%.
9. Piliki ʻĀpana Lana (Piliki Cenosphere)
ʻO nā piliki Cenosphere he mau huahana pale wela i hana ʻia me nā cenospheres ma ke ʻano he mea maka nui. I ka hoʻomaka ʻana o nā makahiki 1970, ua hoʻomaka koʻu ʻāina e hoʻohana i nā cenospheres lehu lele e hana i nā piliki pale wela i hoʻokumu ʻia i ka pālolo. Ma muli o ke kaʻina hana maʻalahi a me nā kumuwaiwai he nui, maikaʻi ke ʻano o ka huahana. Mai ka makahiki 1980, ua hoʻohana ʻia ke ʻano clinker porous a i ʻole ka hoʻohui ʻana i ka lehu lele cenospheres e hana i nā piliki Cenosphere.
ʻO nā piliki Cenosphere he mau poepoe hakahaka o ke aniani silicate alumini i lana ʻia mai ka lehu lele mai nā mea kanu mana wela. He māmā kona kaumaha, he paia lahilahi, he hakahaka, he ʻili laumania, he haʻahaʻa ka conductivity thermal, hana insulation maikaʻi, refractoriness kiʻekiʻe, a me ka ikaika compressive kiʻekiʻe. A me nā hana ʻē aʻe. Ma ka hoʻohana ʻana i kēia mau ʻano o nā cenospheres, hiki ke hana ʻia nā mea refractory insulating wela me ka hana mālama wela maikaʻi loa. Hiki ke hana ʻia ka hana ʻana o nā piliki cenosphere ma o kahi ʻano semi-maloʻo, nona kahi kaʻina hana maʻalahi a ʻaʻole pono kahi kaʻina hana hoʻopau.
ʻOi aku ka maikaʻi o nā piliki Cenosphere ma mua o nā mea hoʻomehana wela waena-poloka e kū nei ma ke ʻano o ka ikaika mechanical, ke kūpaʻa wela kiʻekiʻe, ka conductivity thermal, a me ka hana hoʻohana, a ua like ia me nā olonā silicate. Hoʻohana nui ʻia kēia mea i nā umu ʻoihana wela kiʻekiʻe like ʻole ma ka mahana o 1200°C e hoʻokō i ke kumu o ka hoʻomaikaʻi ʻana i ka pono wela a me ka hōʻemi ʻana i ka hoʻohana ʻana i ka ikehu. Hoʻohana ʻia nā piliki Cenosphere i nā umu ʻoihana a me nā lako wela kiʻekiʻe i ka metallurgy, mīkini, kemika, petroleum, nā mea kūkulu hale, ʻoihana māmā, mana uila a me nā ʻāpana ʻē aʻe. Ma keʻano laulā, hiki iā lākou ke mālama i ka ikehu ma 15% a 40%. He ʻano hou maikaʻi ia o ka māhele māmā. Mea wela.
10. Piliki poepoe hakahaka
He pōhaku poepoe hakahaka Alumina
ʻO ka piliki poepoe hollow alumina kahi huahana pale wela me ka alumina hollow sphere ma ke ʻano he mea maka nui. ʻO nā ʻano loea maʻamau o nā piliki poepoe hollow alumina: ʻAʻole emi ka nui o Al2O3 ma mua o 98%, ʻAʻole ʻoi aku ka nui o SiO2 ma mua o 0.5%, ʻAʻole ʻoi aku ka nui o Fe2O3 ma mua o 0.2%, ʻO ka nui o ka nui he 1.3 ~ 1.4g / cm3, ʻo ka porosity apparent he 60% ~ 80%, ʻAʻole emi ka ikaika compressive ma mua o 9.8MPa, ʻAʻole emi ka mahana palupalu o ka ukana (0.2MPa) ma mua o 1700 ℃, a ʻo ka conductivity thermal he 0.7 ~ 0.8W / (m · K).
I ka hoʻohālikelike ʻia me nā huahana insulation thermal maʻamau a me nā huahana refractory, ʻike ʻia ka brick alumina hollow sphere e ka nui o nā pores pani i loko o ka huahana. No laila, he ikaika kiʻekiʻe a me ka paʻa o ka pore structure, haʻahaʻa ka density a me ka haʻahaʻa o ka conductivity thermal. Hoʻohana nui ʻia ia no nā uhi umu ʻoihana ma lalo o 1800 ℃, e like me nā brick uhi umu wela kiʻekiʻe i nā ʻoihana refractory, electronics, a me ceramic; nā papa insulation thermal no nā lako thermal wela kiʻekiʻe, e like me nā umu gasification i ka ʻoihana petrochemical, nā umu kinoea, nā reactors ʻoihana lanahu, nā brick insulation no nā umu induction i ka ʻoihana metallurgical.
B Zirconia hollow sphere brick
ʻO ka zirconia hollow sphere brick kahi huahana refractory hoʻopaʻa wela i hana ʻia me nā zirconia hollow spheres ma ke ʻano he mea maka nui. ʻO ka pae kristal nui o kēia brick he cubic zirconia (ma kahi o 70% a 80% o ka hui mineral), a ʻo kāna hana maʻamau penei: ʻOi aku ka refractoriness ma mua o 2400 ℃, ʻo ka porosity apparent he 55% ~ 60%, ʻo ka nui o ka leo he 2.5 ~ 3.0g / cm3, ʻaʻole emi ka ikaika compressive ma mua o 4.9MPa, a ʻo ka conductivity thermal he 0.23 ~ 0.35W / (m · K).
ʻO nā zirconia hollow spheres he mau huahana refractory hoʻopaʻa wela me ka hana maikaʻi loa. ʻO ka mahana hoʻohana palekana kiʻekiʻe loa he 2200℃. Loaʻa i nā piliki zirconia hollow sphere ka ikaika wela kiʻekiʻe a me ke ʻano pore paʻa, no laila hiki ke hoʻohana palekana ʻia i ka mahana kiʻekiʻe o 2200℃. He haʻahaʻa ka density o nā piliki zirconia hollow ball a me ka conductivity thermal haʻahaʻa, ʻaʻole hiki ke hōʻemi wale i ka nalowale wela, akā hōʻemi pū i ka mālama wela. No laila, ma ke ʻano he mea uhi wela kiʻekiʻe e pili pono ana i ka lapalapa i nā lako wela e like me ka metallurgy, petroleum, ʻoihana kemika, electronics, a me nā mea ʻē aʻe, hiki iā ia ke hōʻemi i ka hoʻohana ʻana i ka ikehu a hoʻemi i ke kaumaha o ka umu wela kiʻekiʻe, a maikaʻi ka hopena hoʻohana.
Ka manawa hoʻouna: Nov-26-2021